Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Jam Maestro is a powerful music composition tool for musicians interested in making guitar-centric music.
$8.99 · In-app purchases
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Jam Maestro: create guitar tab: map the core Music workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Limited customization options for guitar tabs
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in sharing tabs with non-users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No offline access for saved tabs
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Complexity in learning the interface
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Jam Maestro is a powerful music composition tool for musicians interested in making guitar-centric music. Sequence up to 16 instruments together, including Guitar, Bass and Drums, and compose songs in guitar/drum tab format. Midi sequence and play background apps in your compositions using the Midi and Inter-App Audio instrument types. Easily construct harmonies and see the relationship between notes thanks to a unique interface. Instantly share tab ideas with friends and bandmates via Dropbox. Playback with highly realistic samples. Export tabs to PDF/TXT and render tabs to wav/m4a format. Import Guitar Pro 3-5 files. Features: - 5 Instrument types: Guitar, Bass, Drums, Midi, Inter-App Audio. - Inter-App Audio Host and Node support. - Connect up to 4x Inter-App Audio Effects. - Effects: Reverb, Delay, EQ, Chorus, Flanger, Vibrato, Tremolo. - Full Midi In/Out compatibility - Midi Sequencing - Import Guitar Pro 3-5 files - Export/Import Midi files - Export tab to PDF/TXT file - Create your own Drum Kits. - Audiobus 3.0 support, including State Saving that captures tab info (share your songs in Audiobus presets!) - AudioCopy support. - Ableton Link Check out - www.jammaestro.com - for many videos of Jam Maestro in action! “This app gives me the power to pro-produce music even places that I can’t physically play guitar. I’ve used this as my main song-writing tool for years now.” -Chris Zell (She Pulled The Trigger) INSTRUMENTS: • Load up to 16 instruments, all midi in compatible. • 5 Instrument Types: Guitar, Bass, Drums, Midi, Inter-App Audio • Realistic sound, OVER 4000+ (painstakingly) recorded samples. • Full guitar fretboard (24 frets). • Palm muted equivalents for every guitar note for that heavy CHUG sound. • Supports 6/7 string guitar, 4/5 string bass. • Any custom guitar tuning in the range of Standard to Drop A possible (in most cases alternative tunings have been fully resampled for most realistic sound). • One-touch Chords allow you to forget tricky finger position (+ define up to 25 of your own). • Unique interface allows dynamic key changing as you play. • Use guitar fretboard or drum pads as a midi controller to play background apps/midi devices. • iPad version ‘Dual Mode’ allows you to play 2 instruments simultaneously, including 2 separate midi compatible apps/devices. DRUM KIT CREATOR: • Use own samples or background midi app sounds. • Up to 20 pads, each which can be assigned with 2 sounds for cut off (eg. Open and Closed Hi-Hat). • All custom kits fully compatible with internal sequencer • Drum Kits using local samples are fully Midi In compatible. • Create Interfaces for background midi drum apps and sequence using internal sequencer. • Easily import and export your custom drum kits and share with others. SOUNDPACKS All Soundpacks now come unlocked in the Full Version. • Guitar: Acoustic, Metalcore, Shimmer, Stoner Doom, Bright Clean, Epic lead. • Bass: Studio Tone, Blacklisted, Hazzard. • Drum: Metal Drums, Rock Drums. Metal Drums Pro, Rock Drums Pro, Power Drums, Punk Drums, Vintage Drums, Jazz Drums, Vinyl Drums, Bongos, Tabla, Drum Machine 808, Industrial, Atmosphere, Percussion Kit, Timpani TAB: • Guitar/Bass/Drum Tab Sequencer. • Midi Sequencer • Intuitive interface - program in notes just by touching them, rather than messing around with a numpad. • Play in almost any time signature. • Key analysis tools. • Jam Mode means you can record all instruments to tab simultaneously as you jam over your backing instruments. • Tempo/Repeat/Mixer/Panning Control. EXPORT: • Save tabs in .jam format - export via iTunes or straight to Dropbox to share with friends/bandmates instantly. • Share tabs as PDF/TXT file. • Export tabs as midi file. • Render tabs as wav/m4a files. • Audiobus 3.0 Support • AudioCopy Support www.jammaestro.com
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.